With fusion device performance hinging on the edge pedestal pressure, it is imperative to
experimentally understand the physical mechanism dictating the pedestal characteristics …

We present multipoint observations of magnetotail plasma sheet dynamics during an event
in which magnetic reconnection and dipolarization were observed at− 16< X<− 15 RE (mid …

We present observations which provide strong support for a substorm expansion phase
onset scenario in which a localized inner magnetospheric instability developed first and was …

Recent global simulations of substorms show that before the onset of near‐Earth
reconnection the pressure equilibrium in the tail breaks down. This instability has no cross …

Kinetic ballooning modes (KBMs) are widely believed to play a critical role in disruptive
dynamics as well as turbulent transport in magnetic fusion and space plasmas. While the …

In this work, we analyze the ballooning stability of the near-Earth plasma sheet prior to the
initial expansion onset of the 23 March 2007 THEMIS substorm event. Using solar wind data …

We present state‐of‐the‐art multiple instrument observations of an isolated substorm on
October 12, 2007. The auroral breakup was observed simultaneously by Reimei, THEMIS …

THEMIS five‐point observations on April 8, 2009 were used to study thinning of the current
sheet in the near‐Earth tail that led to the onset of a small substorm. Taking advantage of a …

We present results from Open Geospace General Circulation Model simulations of the 23
March 2007 THEMIS “first light” substorm. We investigate the relation between ballooning …

Magnetic dipolarization has been considered as a key element of substorm phenomena. In
this work we investigate the spectral features of the magnetic dipolarization fluctuations in …